Here is what I've just found on Madonna Fanzine:

Hi there!

I am doing an internship in the Warner Bros Company here in France in the town of Neuilly and I've got some cool news to tell you guys!
I've heard that 4 editions of the upcoming album are planned:
-the first one is the original cd in a case called 'cristal' (it means the original cd format),
-the second one is the vynil edition of the album in limited edition just as 'COAD,
-the third one is only for France and this is the same as the original edition except the fact that it will be in a slipcase and it will costs 13,99€ "only" [this is a way to promote the new cd in France: Björk, Nelly Furtado, Justin Timberlake had the same limited edition]
-and the fourth one is for worldwide.